Butane, 2-methyl-

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Gas phase thermochemistry data

Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas-153.7 ± 0.59kJ/molCcbGood, 1970ALS
Δfgas-154.1 ± 0.96kJ/molCmPilcher and Chadwick, 1967ALS
Δfgas-154.5 ± 0.84kJ/molCcbProsen and Rossini, 1945ALS
Quantity Value Units Method Reference Comment
Δcgas-3528.4 ± 0.92kJ/molCmPilcher and Chadwick, 1967Corresponding Δfgas = -154.1 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcgas-3528.6 ± 0.63kJ/molCmKnowlton and Rossini, 1939Corresponding Δfgas = -153.9 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcgas-3527.6 ± 3.5kJ/molCcbRoth and Pahlke, 1936Reanalyzed by Cox and Pilcher, 1970, Original value = -3529.0 kJ/mol; Corresponding Δfgas = -155.0 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
84.94200.Scott D.W., 1974Recommended values were obtained from the consistent correlation scheme for alkanes [ Scott D.W., 1974, 2, Scott D.W., 1974]. This approach gives a better agreement with experimental data than the statistical thermodynamics calculations [ Pitzer K.S., 1946, Scott D.W., 1951].; GT
110.37273.15
118.9 ± 0.4298.15
119.50300.
152.88400.
183.26500.
210.04600.
233.05700.
253.13800.
270.70900.
286.191000.
299.571100.
311.291200.
322.171300.
330.541400.
338.901500.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
125.31 ± 0.37317.20Scott D.W., 1951GT
139.12 ± 0.42358.15
153.64 ± 0.46402.30
168.36 ± 0.51449.20
179.62 ± 0.54487.05

Phase change data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis

Quantity Value Units Method Reference Comment
Tboil301.1 ± 0.2KAVGN/AAverage of 67 out of 76 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus113. ± 1.KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple113.37KN/AGuthrie and Huffman, 1943Uncertainty assigned by TRC = 0.02 K; TRC
Ttriple113.39KN/ASchumann, Aston, et al., 1942Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple112.6KN/AParks, Huffman, et al., 1930Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Tc461. ± 5.KAVGN/AAverage of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Pc33.8 ± 0.5barN/ADaubert, 1996 
Pc33.81barN/ADas, Reed, et al., 1977Uncertainty assigned by TRC = 0.5066 bar; TRC
Pc34.106barN/AVohra and Kobe, 1959Uncertainty assigned by TRC = 0.1013 bar; TRC
Pc33.355barN/AYoung, 1910Uncertainty assigned by TRC = 0.667 bar; TRC
Pc32.70barN/AAltschul, 1893Uncertainty assigned by TRC = 0.9807 bar; TRC
Quantity Value Units Method Reference Comment
Vc0.306l/molN/ADaubert, 1996 
Quantity Value Units Method Reference Comment
ρc3.27 ± 0.05mol/lN/ADaubert, 1996 
ρc3.247mol/lN/AHolcomb, Magee, et al., 1995Uncertainty assigned by TRC = 0.06 mol/l; TRC
ρc3.27mol/lN/ADas, Reed, et al., 1977Uncertainty assigned by TRC = 0.03 mol/l; TRC
ρc3.27mol/lN/AVohra and Kobe, 1959Uncertainty assigned by TRC = 0.1 mol/l; TRC
ρc3.247mol/lN/AYoung, 1910Uncertainty assigned by TRC = 0.06 mol/l; TRC
Quantity Value Units Method Reference Comment
Δvap25.22kJ/molN/AMajer and Svoboda, 1985 
Δvap24.8kJ/molN/AReid, 1972AC
Δvap24.8 ± 0.1kJ/molVScott, McCullough, et al., 1951flow calorimeter and metal cycling vaporizer; ALS
Δvap25.0kJ/molCSchumann, Aston, et al., 1942, 2AC

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
24.69301.N/AMajer and Svoboda, 1985 
24.832293.95N/ASchumann, Aston, et al., 1942, 2P = 79.15 kPa; DH
26.9270.N/AEwing and Goodwin, 1991Based on data from 255. to 323. K.; AC
28.5231.AStephenson and Malanowski, 1987Based on data from 216. to 323. K.; AC
25.2315.AStephenson and Malanowski, 1987Based on data from 300. to 460. K.; AC
25.2335.AStephenson and Malanowski, 1987Based on data from 320. to 391. K.; AC
24.8400.AStephenson and Malanowski, 1987Based on data from 385. to 416. K.; AC
25.3427.AStephenson and Malanowski, 1987Based on data from 412. to 460. K.; AC
24.4310.N/ADas, Reed, et al., 1977, 2AC
21.5350.N/ADas, Reed, et al., 1977, 2AC
18.0390.N/ADas, Reed, et al., 1977, 2AC
12.9430.N/ADas, Reed, et al., 1977, 2AC
30.2205.N/AStull, 1947Based on data from 190. to 300. K.; AC
26.2295.MMWillingham, Taylor, et al., 1945Based on data from 289. to 301. K.; AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kJ/mol) β Tc (K) Reference Comment
279. to 301.39.020.267460.4Majer and Svoboda, 1985 

Entropy of vaporization

ΔvapS (J/mol*K) Temperature (K) Reference Comment
84.48293.95Schumann, Aston, et al., 1942, 2P; DH

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
190.3 to 300.93.909351018.516-40.081Stull, 1947Coefficents calculated by NIST from author's data.
300.9 to 453.53.971831021.864-43.231Stull, 1947Coefficents calculated by NIST from author's data.
289.44 to 301.743.914571020.012-40.053Williamham, Taylor, et al., 1945 

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
5.1555113.37Guthrie and Huffman, 1943, 2DH
5.130113.39Schumann, Aston, et al., 1942, 2DH
5.13113.4Domalski and Hearing, 1996AC
5.113112.6Parks, Huffman, et al., 1930, 2DH

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
45.48113.37Guthrie and Huffman, 1943, 2DH
45.24113.39Schumann, Aston, et al., 1942, 2DH
45.23113.4Domalski and Hearing, 1996CAL
45.41112.6Parks, Huffman, et al., 1930, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, Gas Chromatography, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)10.32 ± 0.05eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
10.21PITraeger, Hudson, et al., 1996T = 0K; LL
10.18ESTLuo and Pacey, 1992LL
10.22PITraeger, 1981LLK
10.3 ± 0.1PEBieri, Burger, et al., 1977LLK
10.50 ± 0.05EIFlesch and Svec, 1973LLK
10.32PEDewar and Worley, 1969RDSH
10.32PIWatanabe, Nakayama, et al., 1962RDSH
10.94PEKimura, Katsumata, et al., 1981Vertical value; LLK
11.0 ± 0.1PEBieri, Burger, et al., 1977Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H6+10.66C2H6PITraeger, Hudson, et al., 1996T = 0K; LL
C3H6+10.84 ± 0.025C2H6PISteiner, Giese, et al., 1961RDSH
C3H7+11.06C2H5PITraeger, Hudson, et al., 1996T = 0K; LL
C3H7+11.15 ± 0.05C2H5PISteiner, Giese, et al., 1961RDSH
C4H8+10.72CH4PITraeger, Hudson, et al., 1996T = 0K; LL
C4H8+10.74 ± 0.02CH4PISteiner, Giese, et al., 1961RDSH
C4H9+10.96CH3PITraeger, Hudson, et al., 1996T = 0K; LL
C4H9+10.87CH3PITraeger, 1981LLK
C4H9+11.15 ± 0.07CH3PISteiner, Giese, et al., 1961RDSH

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Gas Chromatography, References, Notes

Data compiled by: Coblentz Society, Inc.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director


Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillarySqualane100.475.Heinzen, Soares, et al., 1999 
CapillaryCP Sil 260.474.2Estel, Mohnke, et al., 1995100. m/0.25 mm/0.25 μm
CapillaryOV-10140.469.Laub and Purnell, 1988 
CapillaryOV-10160.470.Laub and Purnell, 1988 
CapillaryOV-10180.470.Laub and Purnell, 1988 
CapillarySqualane50.475.8Lunskii and Paizanskaya, 1988He; Column length: 50. m; Column diameter: 0.22 mm
CapillarySqualane70.475.4Lunskii and Paizanskaya, 1988He; Column length: 50. m; Column diameter: 0.22 mm
CapillarySqualane50.474.9Papazova, Milina, et al., 1988Column length: 50. m; Column diameter: 0.25 mm
CapillaryOV-120.468.Nijs and Jacobs, 1981He; Column length: 150. m; Column diameter: 0.50 mm
CapillarySqualane50.474.9Bajus, Veselý, et al., 1979Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.474.5Bajus, Veselý, et al., 1979Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane50.475.4Bajus, Veselý, et al., 1979, 2Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.475.Bajus, Veselý, et al., 1979, 2Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane60.475.Chretien and Dubois, 1976 
CapillarySqualane100.475.6Lulova, Leont'eva, et al., 1976He; Column length: 120. m; Column diameter: 0.25 mm
CapillarySqualane50.475.Rijks and Cramers, 1974N2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.476.Rijks and Cramers, 1974N2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane27.474.37Schomburg and Dielmann, 1973Column length: 100. m; Column diameter: 0.25 mm
CapillaryVacuum Grease Oil (VM-4)35.470.Sidorov, Petrova, et al., 1972 
CapillaryVacuum Grease Oil (VM-4)45.470.Sidorov, Petrova, et al., 1972 
CapillaryVacuum Grease Oil (VM-4)50.471.Sidorov, Petrova, et al., 1972 
CapillaryVacuum Grease Oil (VM-4)58.471.Sidorov, Petrova, et al., 1972 
CapillaryVacuum Grease Oil (VM-4)68.472.Sidorov, Petrova, et al., 1972 
PackedSqualane100.477.Robinson and Odell, 1971N2, Embacel; Column length: 3.0 m
CapillarySqualane40.476.Matukuma, 1969N2; Column length: 91.4 m; Column diameter: 0.25 mm
PackedSqualane27.474.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane49.475.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane67.476.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane86.476.Hively and Hinton, 1968He, Chromosorb P; Column length: 15. m; Column diameter: 0.25 mm
PackedSqualane30.474.Tourres, 1967H2; Column length: 10. m
PackedSqualane50.474.Tourres, 1967H2; Column length: 10. m
CapillarySqualane30.474.Tourres, 1967, 2H2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane50.474.Tourres, 1967, 2H2; Column length: 100. m; Column diameter: 0.25 mm
CapillarySqualane70.474.Tourres, 1967, 2H2; Column length: 100. m; Column diameter: 0.25 mm
PackedSE-3070.478.Widmer, 1967Diatoport S; Column length: 7.9 m
PackedSqualane100.477.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane22.474.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane30.474.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane40.475.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane55.473.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane60.475.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane70.474.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane80.476.Evans, 1966Untreated celite; Column length: 1.8 m
PackedSqualane26.476.Zulaïca and Guiochon, 1966Column length: 10. m

Kovats' RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryOV-101465.Hayes and Pitzer, 1982110. m/0.25 mm/0.20 μm, He, 1. K/min; Tstart: 35. C; Tend: 200. C
CapillaryApiezon L461.Louis, 1971N2, 1. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 60. C

Kovats' RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryPetrocol DH-100477.5Haagen-Smit Laboratory, 1997He; Column length: 100. m; Column diameter: 0.2 mm; Program: 5C(10min) => 5C/min => 50C(48min) => 1.5C/min => 195C(91min)
CapillaryDB-1477.Hoekman, 199360. m/0.32 mm/1.0 μm, He; Program: -40 C for 12 min; -40 - 125 C at 3 deg.min; 125-185 C at 6 deg/min; 185 - 220 C at 20 deg/min; hold 220 C for 2 min

Kovats' RI, polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedCarbowax 20M130.467.Widmer, 1967Diatoport P; Column length: 7.9 m
PackedCarbowax 20M70.471.Widmer, 1967Diatoport P; Column length: 7.9 m

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryPetrocol DH464.9Censullo, Jones, et al., 200350. m/0.25 mm/0.5 μm, He, 35. C @ 10. min, 3. K/min, 200. C @ 10. min
CapillaryOV-101466.1Yin, Liu, et al., 2001N2, 1. K/min; Column length: 80. m; Column diameter: 0.22 mm; Tstart: 30. C; Tend: 130. C
CapillaryPetrocol DH465.35Subramaniam, Bochniak, et al., 1994100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C
CapillaryPetrocol DH465.39Subramaniam, Bochniak, et al., 1994100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C
CapillaryUltra-1467.Olson, Sinkevitch, et al., 19924. K/min; Tstart: -40. C; Tend: 230. C
CapillaryPetrocol DH465.11White, Douglas, et al., 1992100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C
CapillaryPetrocol DH465.18White, Douglas, et al., 1992100. m/0.25 mm/0.5 μm, He, 1. K/min; Tstart: 30. C; Tend: 220. C
CapillaryOV-101465.Hayes and Pitzer, 1981108. m/0.25 mm/0.2 μm, 1. K/min; Tstart: 35. C; Tend: 200. C

Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryOV-101466.Wu and Lu, 1984Program: not specified

Normal alkane RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryOV-10140.474.Li and Deng, 1998N2; Column length: 51. m; Column diameter: 0.25 mm
CapillaryMethyl Silicone50.475.N/AN2; Column length: 74.6 m; Column diameter: 0.28 mm
CapillaryOV-10150.474.Wu and Lu, 1984, 2 
CapillaryOV-10170.475.Wu and Lu, 1984, 2 
PackedMethyl Silicone50.475.Huguet, 1961Nitrogen, Celite C-22; Column length: 2.5 m

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryPolydimethyl siloxane: CP-Sil 5 CB475.Bramston-Cook, 201360. m/0.25 mm/1.0 μm, Helium, 45. C @ 1.45 min, 3.6 K/min, 210. C @ 2.72 min
CapillaryPetrocol DH476.Supelco, 2012100. m/0.25 mm/0.50 μm, Helium, 20. C @ 15. min, 15. K/min, 220. C @ 30. min
CapillaryUltra-ALLOY-5480.Tsuge, Ohtan, et al., 201130. m/0.25 mm/0.25 μm, 40. C @ 2. min, 20. K/min, 320. C @ 13. min
CapillaryHP-5 MS474.Zenkevich, Makarov A.A., et al., 200930. m/0.25 mm/0.25 μm, Helium, 2. K/min, 220. C @ 10. min; Tstart: 50. C
CapillaryPONA465.Zhang, Ding, et al., 200950. m/0.20 mm/0.50 μm, Nitrogen, 35. C @ 15. min, 2. K/min, 200. C @ 10. min
CapillaryOV-1466.2Krkosova, Kubinec, et al., 2007100. m/0.32 mm/0.25 μm, Helium, 5. K/min, 310. C @ 5. min; Tstart: 30. C
CapillarySE-54464.Guan, Li, et al., 199560. C @ 2. min, 4. K/min; Column length: 50. m; Column diameter: 0.32 mm; Tend: 200. C
CapillaryDB-1464.Ciccioli, Cecinato, et al., 199260. m/0.32 mm/1.2 μm, He, 30. C @ 10. min, 3. K/min; Tend: 240. C

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryNonpolar475.Staples and Zeiger, 2008Program: not specified
CapillaryMethyl Silicone476.Chen and Feng, 2007Program: not specified
CapillaryMethyl Silicone475.Feng and Mu, 2007Program: not specified
CapillaryMethyl Silicone475.Blunden, Aneja, et al., 200560. m/0.32 mm/1.0 μm, Helium; Program: -50 0C (2 min) 8 0C/min -> 200 0C (7.75 min) 25 0C -> 225 0C (8 min)
CapillaryOV-101475.Du and Liang, 2003Program: not specified
CapillaryPolydimethyl siloxane475.Junkes, Castanho, et al., 2003Program: not specified
CapillaryPONA477.Perkin Elmer Instruments, 2002Column length: 100. m; Phase thickness: 0.50 μm; Program: not specified
CapillaryPolydimethyl siloxanes466.Yin, Guo, et al., 2001Program: not specified
CapillaryMethyl Silicone472.Spieksma, 1999Program: not specified
CapillaryMethyl Silicone474.Xu, Chu, et al., 1995Program: not specified
CapillarySE-52467.van Langenhove and Schamp, 1986Column length: 100. m; Column diameter: 0.50 mm; Program: not specified
PackedSE-30476.Robinson and Odell, 1971N2, Chromosorb W; Column length: 6.1 m; Program: 50C910min) => 20C/min => 90(6min) => 10C/min => 150C(hold)
PackedSqualane476.Robinson and Odell, 1971N2, Embacel; Column length: 3.0 m; Program: 25C(5min) => 2C/min => 35 => 4C/min => 95C(hold)
PackedSE-30476.Robinson and Odell, 1971, 2Chrom W; Column length: 6.1 m; Program: 50C(10min) => 20C/min(2min) => 90C(6min) => 10C/min(6min) => (hold at 150C)
PackedSqualane476.Robinson and Odell, 1971, 2Embacel; Column length: 3.0 m; Program: 25C(5min) => 2C/min(5min) => 4C/min(15min) => (hold at 95C)

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Good, 1970
Good, W.D., The enthalpies of combustion and formation of the isomeric pentanes, J. Chem. Thermodyn., 1970, 2, 237-244. [all data]

Pilcher and Chadwick, 1967
Pilcher, G.; Chadwick, J.D.M., Measurements of heats of combustion by flame calorimetry. Part 4.-n-Pentane, isopentane, neopentane, Trans. Faraday Soc., 1967, 63, 2357-2361. [all data]

Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D., Heats of combustion and formation of the paraffin hydrocarbons at 25° C, J. Res. NBS, 1945, 263-267. [all data]

Knowlton and Rossini, 1939
Knowlton, J.W.; Rossini, F.D., Heats of combustion of tetramethylmethane and 2-methylbutane, J. Res. NBS, 1939, 22, 415-424. [all data]

Roth and Pahlke, 1936
Roth, W.A.; Pahlke, H., Sekundare eichsubstanz fur verbrennungscalorimeter fur gase und dampfe. Die verbrennungswarme von isopentandampf, Angew. Chem., 1936, 49, 618-619. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Scott D.W., 1974
Scott D.W., Chemical Thermodynamic Properties of Hydrocarbons and Related Substances. Properties of the Alkane Hydrocarbons, C1 through C10 in the Ideal Gas State from 0 to 1500 K. U.S. Bureau of Mines, Bulletin 666, 1974. [all data]

Scott D.W., 1974, 2
Scott D.W., Correlation of the chemical thermodynamic properties of alkane hydrocarbons, J. Chem. Phys., 1974, 60, 3144-3165. [all data]

Pitzer K.S., 1946
Pitzer K.S., The entropies and related properties of branched paraffin hydrocarbons, Chem. Rev., 1946, 39, 435-447. [all data]

Scott D.W., 1951
Scott D.W., Rotational isomerism and thermodynamic functions of 2-methylbutane and 2,3-dimethylbutane. Vapor heat capacity and heat of vaporization of 2-methylbutane, J. Am. Chem. Soc., 1951, 73, 1707-1712. [all data]

Guthrie and Huffman, 1943
Guthrie, G.B.; Huffman, H.M., Thermal data. XVI. the heat capacity and entropy of isopentane. the absence of a reported anomaly., J. Am. Chem. Soc., 1943, 65, 1139. [all data]

Schumann, Aston, et al., 1942
Schumann, S.C.; Aston, J.G.; Sagenkahn, M., The Heat Capacity and Entropy, Heats of Fusion and Vaporization and the Vapor Pressures of Isopentane, J. Am. Chem. Soc., 1942, 64, 1039. [all data]

Parks, Huffman, et al., 1930
Parks, G.S.; Huffman, H.M.; Thomas, S.B., Thermal Data on Organic Compounds VI. The Heat Capacities, Entropies and Free Energies of Some Saturated, Non-Benzenoid Hydrocarbons, J. Am. Chem. Soc., 1930, 52, 1032-41. [all data]

Daubert, 1996
Daubert, T.E., Vapor-Liquid Critical Properties of Elements and Compounds. 5. Branched Alkanes and Cycloalkanes, J. Chem. Eng. Data, 1996, 41, 365-372. [all data]

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Notes

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